Sodium Bicarbonate → HCID 58573946, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of (5R,6S)-5-(3-chlorophenyl)-6-(4-chlorophenyl)-1-((S)-1-(1,1-dioxidoisothiazolidin-2-yl)butan-2-yl)piperidin-2-one (Example 420, Step A, 0.7 g, 1.413 mmol) in THF (5.65 ml) at −78° C. was added dropwise sec-butyllithium, (1.4 M in cyclohexane, 1.06 ml, 1.483 mmol). The reaction was warmed to −10° C. After about 5 minutes, the reaction was returned to a −78° C. bath. A solution of 2-(iodomethyl)-6-methoxypyridine (Example 420, Step B, 0.387 g, 1.554 mmol) in THF (1 mL) was added dropwise to the cooled reaction mixture. The reaction was allowed to warm to room temperature and stirred for 1 h. The reaction contents were poured into saturated sodium bicarbonate and the aqueous layer was extracted with dichloromethane (3×50 mL). The combined organics were dried with sodium sulfate and concentrated in vacuo. Silica gel chromatography (step gradient elution 5 to 50% diethyl ether in dichloromethane) afforded the title compound as the more polar diastereomer.

Provenance & Evidence